Can a patch stop Implant-Related bleeding? new trial aims to find out
NCT ID NCT07083635
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This phase 2 trial tests whether a transdermal patch containing ethinyl estradiol and norelgestromin can stop irregular vaginal bleeding in women using contraceptive implants. Forty women over 18 who have abnormal bleeding will apply the patch or a placebo for 21 days. Researchers will check if bleeding stops by day 14 and monitor side effects and recurrence for 3 months.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- ethinyl estradiol and norelgestromin patch
- What this could lead to
- If it works, this could offer a simple, short-term patch treatment to stop irregular bleeding caused by contraceptive implants.
- What could go wrong
- This is a small, early-phase trial with only 40 participants. The patch may not work better than placebo, and side effects from hormones are possible.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 40 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2025
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Female participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Women aged 18 years and older * Regular menstrual cycles : at least 1 cycle prior to contraceptive implant insertion * Normal pelvic examination and transvaginal ultrasound results * Normal cervical cancer screening within the past 3 years * Irregular vaginal bleeding defined as: Bleeding for more than 8 consecutive days, or Bleeding-free intervals of 15 days or less Exclusion Criteria: * Previous treatment for irregular vaginal bleeding within the past 3 months * Pregnancy * Contraindications to estrogen or progestin use * Allergy to estrogen or progestin * Allergy to hormonal patches * Heavy vaginal bleeding causing anemia symptoms such as: Fatigue/Fainting/Dizziness
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Family Planning Clinic, King Chulalongkorn Memorial Hospital
RECRUITINGPathum Wan, Bangkok, 10400, Thailand
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